<template>
  <div class="register">
    <el-form
      ref="registerRef"
      class="register-form"
      :model="registerForm"
      :rules="registerRules"
    >
      <h3 class="title">若依后台管理系统</h3>

      <el-form-item prop="username">
        <el-input
          v-model="registerForm.username"
          auto-complete="off"
          placeholder="账号"
          size="large"
          type="text"
        >
          <template #prefix>
            <svg-icon class="el-input__icon input-icon" icon-class="user" />
          </template>
        </el-input>
      </el-form-item>

      <el-form-item prop="password">
        <el-input
          v-model="registerForm.password"
          auto-complete="off"
          placeholder="密码"
          size="large"
          type="password"
          @keyup.enter="handleRegister"
        >
          <template #prefix>
            <svg-icon class="el-input__icon input-icon" icon-class="password" />
          </template>
        </el-input>
      </el-form-item>

      <el-form-item prop="confirmPassword">
        <el-input
          v-model="registerForm.confirmPassword"
          auto-complete="off"
          placeholder="确认密码"
          size="large"
          type="password"
          @keyup.enter="handleRegister"
        >
          <template #prefix>
            <svg-icon class="el-input__icon input-icon" icon-class="password" />
          </template>
        </el-input>
      </el-form-item>

      <el-form-item v-if="captchaEnabled" prop="code">
        <el-input
          v-model="registerForm.code"
          auto-complete="off"
          placeholder="验证码"
          size="large"
          style="width: 63%"
          @keyup.enter="handleRegister"
        >
          <template #prefix>
            <svg-icon
              class="el-input__icon input-icon"
              icon-class="validCode"
            />
          </template>
        </el-input>

        <div class="register-code">
          <img class="register-code-img" :src="codeUrl" @click="getCode" />
        </div>
      </el-form-item>

      <el-form-item style="width: 100%">
        <el-button
          :loading="loading"
          size="large"
          style="width: 100%"
          type="primary"
          @click.prevent="handleRegister"
        >
          <span v-if="!loading">注 册</span>

          <span v-else>注 册 中...</span>
        </el-button>

        <div style="float: right">
          <router-link class="link-type" :to="'/login'">
            使用已有账户登录
          </router-link>
        </div>
      </el-form-item>
    </el-form>
    <!--  底部  -->
    <div class="el-register-footer">
      <span>Copyright © 2018-2024 ruoyi.vip All Rights Reserved.</span>
    </div>
  </div>
</template>

<script setup>
  import { ElMessageBox } from 'element-plus'
  import { getCodeImg, register } from '@/api/login'

  const router = useRouter()
  const { proxy } = getCurrentInstance()

  const registerForm = ref({
    username: '',
    password: '',
    confirmPassword: '',
    code: '',
    uuid: '',
  })

  const equalToPassword = (rule, value, callback) => {
    if (registerForm.value.password !== value) {
      callback(new Error('两次输入的密码不一致'))
    } else {
      callback()
    }
  }

  const registerRules = {
    username: [
      { required: true, trigger: 'blur', message: '请输入您的账号' },
      {
        min: 2,
        max: 20,
        message: '用户账号长度必须介于 2 和 20 之间',
        trigger: 'blur',
      },
    ],
    password: [
      { required: true, trigger: 'blur', message: '请输入您的密码' },
      {
        min: 5,
        max: 20,
        message: '用户密码长度必须介于 5 和 20 之间',
        trigger: 'blur',
      },
      {
        pattern: /^[^<>"'|\\]+$/,
        message: '不能包含非法字符：< > " \' \\\ |',
        trigger: 'blur',
      },
    ],
    confirmPassword: [
      { required: true, trigger: 'blur', message: '请再次输入您的密码' },
      { required: true, validator: equalToPassword, trigger: 'blur' },
    ],
    code: [{ required: true, trigger: 'change', message: '请输入验证码' }],
  }

  const codeUrl = ref('')
  const loading = ref(false)
  const captchaEnabled = ref(true)

  function handleRegister() {
    proxy.$refs.registerRef.validate((valid) => {
      if (valid) {
        loading.value = true
        register(registerForm.value)
          .then((res) => {
            const username = registerForm.value.username
            ElMessageBox.alert(
              '<font color=\'red\'>恭喜你，您的账号 ' +
                username +
                ' 注册成功！</font>',
              '系统提示',
              {
                dangerouslyUseHTMLString: true,
                type: 'success',
              },
            )
              .then(() => {
                router.push('/login')
              })
              .catch(() => {})
          })
          .catch(() => {
            loading.value = false
            if (captchaEnabled) {
              getCode()
            }
          })
      }
    })
  }

  function getCode() {
    getCodeImg().then((res) => {
      captchaEnabled.value =
        res.captchaEnabled === undefined ? true : res.captchaEnabled
      if (captchaEnabled.value) {
        codeUrl.value = `data:image/gif;base64,${res.img}`
        registerForm.value.uuid = res.uuid
      }
    })
  }

  getCode()
</script>

<style lang="scss" scoped>
  .register {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
    background-image: url('../assets/images/login-background.jpg');
    background-size: cover;
  }
  .title {
    margin: 0px auto 30px auto;
    text-align: center;
    color: #707070;
  }

  .register-form {
    border-radius: 6px;
    background: #ffffff;
    width: 400px;
    padding: 25px 25px 5px 25px;
    .el-input {
      height: 40px;
      input {
        height: 40px;
      }
    }
    .input-icon {
      height: 39px;
      width: 14px;
      margin-left: 0px;
    }
  }
  .register-tip {
    font-size: 13px;
    text-align: center;
    color: #bfbfbf;
  }
  .register-code {
    width: 33%;
    height: 40px;
    float: right;
    img {
      cursor: pointer;
      vertical-align: middle;
    }
  }
  .el-register-footer {
    height: 40px;
    line-height: 40px;
    position: fixed;
    bottom: 0;
    width: 100%;
    text-align: center;
    color: #fff;
    font-family: Arial;
    font-size: 12px;
    letter-spacing: 1px;
  }
  .register-code-img {
    height: 40px;
    padding-left: 12px;
  }
</style>
